C(s) + 2H2(g) = CH4(g) + heat Which of the following actions will produce a
shift of the reaction to the left?
A. removing CH, from the system
B. increasing the pressure at which the reaction
is performed
C. increasing the temperature at which the
reaction is performed
D. increasing the amount of H2 used

an acid is any substance that has pH of less than 7. The pH scale is used to measure how acid or alkali a substance is:

Explanation:

0-3 = strong acid (UI turns red)

4-6 = weak acid (UI turns orange/yellow)

7 = neutral (UI turns green)

8-10 = weak alkali (UI turns blue)

11-14 = strong alkali (UI turns purple)

The pH of an acid is determined by the concentration of Hydrogen ions (H+) the substance has when in solution. All acids contain hydrogen ions when in solution; the higher the concentration of H+ ions, the lower the pH.

Fast Fact: Bee stings are acidic. They can be neutralized using baking powder which contains sodium hydrogen carbonate.

hope this helped.

Explanation: